Взял другую пару MES2124M собрал у себя на столе. Установил версию ПО 1.1.46
Схема простая:
ПК <-> Gi1/0/2 mes_down Gi1/0/1 <-> Gi1/0/1 mes_up
Конфиг коммутаторов:
Код: Выделить всё
mes_down#sh run
vlan database
vlan 100
exit
!
hostname mes_down
!
clock source sntp
sntp unicast client enable
sntp unicast client poll
sntp server 192.168.200.100 poll
!
interface gigabitethernet 1/0/1
switchport mode trunk
switchport trunk allowed vlan add 100
exit
!
interface vlan 1
ip address 192.168.200.1 255.255.255.0
no ip address dhcp
exit
!
interface vlan 100
name test_vlan
ip address 10.1.1.1 255.255.255.252
exit
!
ip sla operation 1
udp-jitter 10.1.1.2 65000 source-address 10.1.1.1 source-port 65000 num-packets 120 interval 500
request-data-size 40
frequency 61
tag sla_test
exit
!
mes_down#
Код: Выделить всё
mes_up#sh run
vlan database
vlan 100
exit
!
hostname mes_up
!
clock source sntp
sntp unicast client enable
sntp unicast client poll
sntp server 192.168.200.100 poll
!
interface gigabitethernet 1/0/1
switchport mode trunk
switchport trunk allowed vlan add 100
exit
!
interface vlan 1
ip address 192.168.200.2 255.255.255.0
no ip address dhcp
exit
!
interface vlan 100
name test_vlan
ip address 10.1.1.2 255.255.255.252
exit
!
ip sla responder udp_jitter 65000
!
mes_up#
Синхронизировал оба MES от ПК:
Код: Выделить всё
mes_down#sh sntp status
Clock is synchronized, stratum 3, reference is 192.168.200.100, unicast
Reference time is dc977acc.71615e96 15:54:52.0 UTC Apr 11 2017
Unicast servers:
Server Status Last Response Offset Delay
[mSec] [mSec]
--------------- --------- ------------------- --------- -------
192.168.200.100 up 15:54:52.0 UTC Apr 2442 0
11 2017
Anycast server:
Server Interface Status Last Response Offset Delay
[mSec] [mSec]
--------------- --------- --------- ----------------------- --------- -------
Broadcast:
Interface IP address Last Response
------------ --------------- -----------------------
mes_down#
mes_up#sh sntp status
Clock is synchronized, stratum 3, reference is 192.168.200.100, unicast
Reference time is dc977e28.1c1d6ced 16:09:12.0 UTC Apr 11 2017
Unicast servers:
Server Status Last Response Offset Delay
[mSec] [mSec]
--------------- --------- ------------------- --------- -------
192.168.200.100 up 16:09:12.0 UTC Apr 2109 0
11 2017
Anycast server:
Server Interface Status Last Response Offset Delay
[mSec] [mSec]
--------------- --------- --------- ----------------------- --------- -------
Broadcast:
Interface IP address Last Response
------------ --------------- -----------------------
mes_up#
Стартуем тест, ждём... Получаем такое:
Код: Выделить всё
mes_down#sh ip sla statistics 1
IP SLA Statistics for Index 1
Operational state of entry: Active
Type of operation: udp-jitter
Latest operation return code: OK
Latest latency value: 7 ms
Latency two-way values:
Number of Latency two-way samples: 29
Latency Min/Avg/Max: 7/7/11 ms
Latency one-way values:
Number of SD Latency samples: 14
Number of DS Latency samples: 11
Source to Destination Latency one way Min/Avg/Max: 64/65/66 ms
Source to Destination Latency one way Sum: 913 ms
Destination to Source Latency one way Min/Avg/Max: 941/941/944 ms
Destination to Source Latency one way Sum: 10357 ms
Jitter values:
Source to Destination positive jitter Min/Avg/Max: 0/0/0 ms
Source to Destination positive jitter Num/Sum: 0/0 ms
Source to Destination negative jitter Min/Avg/Max: 0/0/0 ms
Source to Destination negative jitter Num/Sum: 0/0 ms
Destination to Source positive jitter Min/Avg/Max: 0/0/0 ms
Destination to Source positive jitter Num/Sum: 0/0 ms
Destination to Source negative jitter Min/Avg/Max: 0/0/0 ms
Destination to Source negative jitter Num/Sum: 0/0 ms
Packet Loss values:
Out Of Sequence: 0
Number of successes: 0
Number of failures: 0
Operations failed due to TimeOut/Unable Send/Bad Reply: 0/0/0
Operations failed due to Unreachable Net/Host/Port/Prot: 0/0/0/0
Operations failed due to Exceeded TTL/Time of reassembly: 0/0
mes_down#
Собственно, что не очень понятно:
1. Jitter не показывает совсем;
2. Number of successes: 0, хотя он явно что-то считает;
3. Односторонняя задержка даёт странные значения в оба направления;
Каких-то явных указаний на ошибку не нашёл.